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How to find the uncommon elements from two arrays in JavaScript

1 Answer

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const arr1 = [1, 3, 8,  9, 17, 18];
const arr2 = [1, 8, 5, 12, 18, 19, 100, 120];

let uncommon = arr1.filter(function(obj) { return arr2.indexOf(obj) == -1; });
uncommon += "," + arr2.filter(function(obj) { return arr1.indexOf(obj) == -1; });
        
console.log(uncommon);
  
  
  
/*
run:
  
3,9,17,5,12,19,100,120

*/

 





answered Jul 24, 2020 by avibootz

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